Are two properties better then one?

[Stefano C.]

I'm relatively new to REI and I am looking at purchasing two 5+ unit apartment properties relatively soon. My thinking is that by buying two REI properties I would diversify my risk an impress my bank for future loans. But I started questioning myself and now wonder if its better to simply buy one more expensive apartment building and keep things simple. My long term goal is to build a nice portfolio of apartments.

Here's the scenario: Buy two 5+ unit apartment buildings valeued at $800 with 30% down or buy one $1.6m apartment building with 30% down? 

Just wondering what an experience investor would do or suggest.